Argus

Argus (ärˈgəs) [key] or Argos ärˈgŏs, –gəs, in Greek mythology. 1 Many-eyed monster, also called Panoptes. He guarded Io after she had been changed into a heifer. After Hermes slew the monster, Hera took his eyes and placed them in the tail of her bird, the peacock. 2 Builder of the Argo. He built the ship on which Jason and the Argonauts (of which he was one) sailed in quest of the Golden Fleece.